Has anyone been able to buy or try out the mercracing upgraded supercharger?

[GAR92677]

Been hearing for over a year merc racing developed a new supercharger. Has anyone seen any results from one or been able to try one? If not who does the best porting of the stock supercharger? Thanks in advance.

[RoofRails]

Been hearing for over a year merc racing developed a new supercharger. Has anyone seen any results from one or been able to try one? If not who does the best porting of the stock supercharger? Thanks in advance.

The prototype MR1900 is currently with 034 being tested. The actual finished units aren't out yet, but I believe those are close. As far as performance goes, I just saw Suited_up_to_the_9s run a PB of a 10.69 @128mph with a used Magnuson 1740 (old APR kit) in his A6 at like 2K ft of elevation (full weight). That's with a 034 STG2+ tune that he's using wmi on to gain a little fueling. If that's not a glimpse of what could be possible with a off the shelf bolt on TVS 1900, then I don't know what is.

If you want to go ported and you want the best, there is Jokers is the shop to go with.

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[GAR92677]

Yes looking forward to seeing some fast cars still using supercharger.

[RoofRails]

Yes looking forward to seeing some fast cars still using supercharger.

I feel the same way. The thought of putting a turbo convertion on this engine never excited me. Im all about the instant throttle response and linear power band of the Supercharger.

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[01northernS4]

Im all about the instant throttle response and linear power band of the Supercharger.

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100% agreed... superchargers are special and why I've had trouble moving on from this amazing engine and car.

[SwankPeRFection]

Should be interesting to see where it goes. Jose has had the Honda supercharger market cornered since Jackson Racing is no more. I’m interested to see how output vs parasitic losses on the new blower balance out. Another point is how much more it can make from the cam upgrade 034 put out on top of the upgraded blower. That said, I think it’s priced a bit high for what it is, but I get it that he’s got some development costs in it, but it’s not like he had to reinvent the wheel. Larger off the shelf charger… he had to rebuild the OEM manifold design to fit that and some new I/C bricks. I respect it, but it’s just new measurements and packaging to fit the same layout. It is clean though, so props for that…. Just don’t know if it’s $8k clean, just like I don’t think the 034 cams are $3500 worthy.

[RoofRails]

Should be interesting to see where it goes. Jose has had the Honda supercharger market cornered since Jackson Racing is no more. I’m interested to see how output vs parasitic losses on the new blower balance out. Another point is how much more it can make from the cam upgrade 034 put out on top of the upgraded blower. That said, I think it’s priced a bit high for what it is, but I get it that he’s got some development costs in it, but it’s not like he had to reinvent the wheel. Larger off the shelf charger… he had to rebuild the OEM manifold design to fit that and some new I/C bricks. I respect it, but it’s just new measurements and packaging to fit the same layout. It is clean though, so props for that…. Just don’t know if it’s $8k clean, just like I don’t think the 034 cams are $3500 worthy.

I have to respectfully disagree with your take that creating a new SC case isn't a big deal because the vehicle already came with one ?? There was a whole lot of 3D scanning, then 3D model test fitting and back and forth with Harrop engineer to get it to the point where he could release it for final production. He's built it to take advantage of every inch of space under the hood, which, thanks to European pedestrian crash standards, isn't much. It's the biggest aftermarket SC ever offered for this engine. He kept it under 10K, and I think that's impressive. APRs kit was 10K in 2015 and basically came with the same thing you're getting here, which is a SC.

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[Bartlett]

100% agreed... superchargers are special and why I've had trouble moving on from this amazing engine and car.

I'm sure there are plenty more cars with more stock horsepower and a similar powerband and throttle response, yeah?

[01northernS4]

I'm sure there are plenty more cars with more stock horsepower and a similar powerband and throttle response, yeah?

everything but throttle response... that's the tough one, no?

turbos generally lag and naturally aspirated generally lack torque... maybe electric? ... but electric is missing the visceral driving engagement experience/sound/feel...

open to good options...

[RoofRails]

everything but throttle response... that's the tough one, no?

turbos generally lag and naturally aspirated generally lack torque... maybe electric? ... but electric is missing the visceral driving engagement experience/sound/feel...

open to good options...

A well tuned NA V8 is the only thing that would be close. Something like the 4.2 in the B8 RS5, but those tend to give up a lot of easy money tuning potential.I'm thinking if Bartlett had a few good examples he would have posted them in his reply instead of acting like Alex Trebec.

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[Bartlett]

A well tuned NA V8 is the only thing that would be close. Something like the 4.2 in the B8 RS5, but those tend to give up a lot of easy money tuning potential.I'm thinking if Bartlett had a few good examples he would have posted them in his reply instead of acting like Alex Trebec.

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This response might be illuminating for you and there are enough examples out there for those that want to research. A Corvette ZR1, Z06, E9X M3, to name a few which were at a similar MSRP to the B8/8.5 S4/S5.

[Loe]

I would love to see how they will resolve fueling on this kit for the brushless pump guys.

[fastboatster]

A well tuned NA V8 is the only thing that would be close. Something like the 4.2 in the B8 RS5, but those tend to give up a lot of easy money tuning potential.I'm thinking if Bartlett had a few good examples he would have posted them in his reply instead of acting like Alex Trebec.

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what about supercharged v8s like in some jags or chevys, lol?

[RoofRails]

what about supercharged v8s like in some jags or chevys, lol?

All the stuff you guys mentioned is great but the last time I checked, this was Audizine, not Anycarzine. I just assume that when people post here, they are Audi enthusiasts and not cross shopping a German sports sedan with ZR1s, Camaro's or a British pile of hot garbage. The only thing I saw that was mentioned that was close to a S4 was the E90 M3 but the last time I checked nothing with a M3 badge has ever been priced equivalent to the corresponding Audi S model.

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[RoofRails]

I would love to see how they will resolve fueling on this kit for the brushless pump guys.

I've see a kit being tested that adds a second brushless pump that is controlled by the PWM. So far its working really well for that guy and a few others, and it seems like a pretty simple solution without turning your LPFP into a giant octopus that you have to stuff back in your tank. I believe 034s solution will be a surge tank.

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[fastboatster]

All the stuff you guys mentioned is great but the last time I checked, this was Audizine, not Anycarzine. I just assume that when people post here, they are Audi enthusiasts and not cross shopping a German sports sedan with ZR1s, Camaro's or a British pile of hot garbage. The only thing I saw that was mentioned that was close to a S4 was the E90 M3 but the last time I checked nothing with a M3 badge has ever been priced equivalent to the corresponding Audi S model.

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b8 s4 is a more expensive analog to 335i, and I having both, these are pretty similar, and dare I say the 335i is more fun. I don't think that s4 compares to the m3 unless you are only talking about straight line speed.

[RoofRails]

b8 s4 is a more expensive analog to 335i, and I having both, these are pretty similar, and dare I say the 335i is more fun. I don't think that s4 compares to the m3 unless you are only talking about straight line speed.

How did we get from this engines unique throttle response feeling like a NA V8 to comparing it to an Inline Turbo 6 cylinder. At least the M3 the other gentleman posted was an NA V8. All I said was that E90 M3 and it's S4 counterpart would not share the same MSRP as he was eluding to. I wasn't comparing performance between the 2 platforms. We are strictly talking about the fantastic throttle response of this engine there really isn't another vehicle in the "Audi" family to replace that feeling.

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[fastboatster]

How did we get from this engines unique throttle response feeling like a NA V8 to comparing it to an Inline Turbo 6 cylinder. At least the M3 the other gentleman posted was an NA V8. All I said was that E90 M3 and it's S4 counterpart would not share the same MSRP as he was eluding to. I wasn't comparing performance between the 2 platforms. We are strictly talking about the fantastic throttle response of this engine there really isn't another vehicle in the "Audi" family to replace that feeling.

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well, somebody had challenged another person to bring up some examples of engines with similarly good throttle response as 3.0"T", and I decided to respond instead of them. In my view, n55 is one of these engines. it has a properly sized turbo which, along with vvt on both camshafts and variable valve lift used as throttle, makes turbo lag imperceptible. I actually don't understand how v8s came into the discussion.

[SwankPeRFection]

Probably because the previous gen S4 was a V8 and that was kind of what Audi was looking to replace while giving a bit more power and headroom for an engine that would be used in other VW and Porsche cars. The NA wasn’t a good option for such a wide array of cross platform fitment because strung out was only going to give you old RS4 power and nothing else. They needed a smaller option forced induction solution which didn’t involve twin turboing because that would give too much power and outpace other engines/cars in their lineup and also be more involved in plumbing, etc.

[Loe]

I've see a kit being tested that adds a second brushless pump that is controlled by the PWM. So far its working really well for that guy and a few others, and it seems like a pretty simple solution without turning your LPFP into a giant octopus that you have to stuff back in your tank. I believe 034s solution will be a surge tank.

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Any word on upgraded DI injectors?

[RoofRails]

Any word on upgraded DI injectors?

Nothing concrete, just 034 teasing them in their live stream.

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[Loe]

Nothing concrete, just 034 teasing them in their live stream.

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Gotcha. I know APR tested this on the bigger Maggy S/C with full E85. The software developer offered me a file to try it out (injectors on my own dime), but they were rather spendy injectors from another VAG family (likely why it sort of fizzled).

If you can lean out the air/fuel a little for full E85 + keep that LPFP happy and stable, this platform has more in it. This is great that interest still continues on this platform

[RoofRails]

Gotcha. I know APR tested this on the bigger Maggy S/C with full E85. The software developer offered me a file to try it out (injectors on my own dime), but they were rather spendy injectors from another VAG family (likely why it sort of fizzled).

If you can lean out the air/fuel a little for full E85 + keep that LPFP happy and stable, this platform has more in it. This is great that interest still continues on this platform

I have heard this rumor before of cross compatible DI injectors that APR was testing. There's a calibration limitation within our ecu of 1389mg/stk which limits power output regardless of your fueling. Maybe APR had that figured out, too, but if they didn't, it would explain them giving up on the Magnuson blower.

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[SwankPeRFection]

A stand-alone ECU from Motec would be nice for our cars. M150’s are plug and play for other Audi cars and no more bullshit limits.

[RoofRails]

A stand-alone ECU from Motec would be nice for our cars. M150’s are plug and play for other Audi cars and no more bullshit limits.

For sure. That would solve a bunch of issues.

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[FromRagsToS4]

Does anyone know what Merc's solution to injectors and fueling is? Will it be possible to run ethanol blend tunes?

[RoofRails]

That part is being worked out by 034. Mercs role in this the way i understand it was to design a TVS 1900 that fit within the engine compartment. 034 is dialing up the supporting fueling upgrades.

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